Karin Retief (also known as Karin Fourie) is a South African actress best known for her role as Carina Human in the now-defunct TV1 television drama series Ballade Vir 'n Enkeling, from 1987-1993. She also played Mrs Wellington in the first season of the SABC1 drama series Tshisa, in 2006.

Other television credits include the Jan Scholtz thriller Die Vierde Kabinet (1998), the kykNET / M-Net drama Song vir Katryn (2003) and the e.tv police procedural Jozi Streets, in 2004.